Improvement in colters



.Patented 1an. 5,1875.

UNITED STATES PATENT OFFICE.

ALANSON P. WEBBER, OF SARATOGA, ILLINOIS.

IMPROVEMENT IN COLTERS.

Specification forming part of Letters Patent No. 158,552, dated January 5, 1875; application led October 3, 1874.

To all whom it may concern:

Be it known that I, ALANsoN P. WEBBER, of Saratoga, in the` county of Marshall and State of Illinois, have invented a new and useful Improvement in Plow-Colters, of which the following is a full description, reference being had to the accompanying drawings, in which- Figure l is a front elevation; Fig. 2, a ver tical section of one prong of the fork, with journal-bearing attached; Fig. 3, a detail, showing the opening at the lower end of the fork; Fig. 4, an end view of the journal-bearing; Fig. 5, a vertical section, showing the journals or shaft in position; Fig. 6, a detail, showing the form of the shaft; and Fig. 7, a side view of the partition-plate forming part of the oil-cup.

In the practical use of wheel-colters it has ybeen found difficult to make them run steady,

. wear or grinding.V

The object of my invention is to overcome these difliculties, and its nature consists in cutting away a portion of the bottom of the supporting-fork, so as to allow the ldirt which falls down upon the journals to pass through and out at the bottom; in attaching the journal-bearings to the sides of the fork, so as to greatly increase the length of the shaft, and thereby steady the wheel; and in so covering the end ofthe shaft that it may be oiled and exclude the portions from dust or' dirt.

In the drawings, A represents the fork; B, the Colfer-wheel 5 G, the colter-shaft; D, the journal-bearings; E, the interposed plate lto hold the oil in place and exclude the dust and dirt; a, a projection on the journal-bearing to prevent displacement, b, enlargements at the end of the shaft C, and c the oiling-holes.

The fork A may be made in any of the usual forms for either fixed or caster colters, and the colter-wheel B is made in any of the usual or well-known forms. The shaft C is made to pass entirely through the fork A, and is enlarged at its ends, as shown at b, Figs. 5 and 6, which enlargements fit into recesses or journal-bearings in the additional plates D. By reducing the diameter of the shaft C between its journal-bearings andthe colter-wheel there is left sufficient space between it and the opening in the lower end of the fork A to allow the dirt to fall through and pass out. This arrangement will be found beneficial, whether the plates E are used or not, as said plates are only an additional security against the entra-nce of dust, and useful in keeping the oil in place. The plates D, which contain the journal-bearings, as shown, have slight projections a, which pass into and tit the prongs formed by cutting out the lower ends of the fork 5 but, instead of this arrangement, the plates may be made longer, and the projection a may be placed at the upper end and fitted into a suitable recess made for that purpose; or an additional plate may be used in place thereof.

Another advantage in making the journalbearings in detachable plates is that, when worn, the journal-bearings can be renewed at a slight expense, without renewing the fork.

The plate Eis made of metal, rubber, leather, or other suitable material, and is made to lit against the reduced portion of the shaft C, and is placed between the fork and the journal-plates, as shown.

What I claim as new is as follows:

1. The fork A, having the lower portion cut away, in combination with the parts D, furnishing bearings for the colter-shaft upon the outside of the fork, as and for the purpose herein specified. Y

2. The interposed` plate E, in combination with the fork A and bearings D, for excluding the dirt and forming an oil-cup, substantially as described.

ALANSON P. WEBBER.

Witnesses:

L. L. BOND, O. W. BOND. 

